Ten years in the past, a mysterious spatial anomaly now often called “Heaven’s Gate” appeared in South America, shortly adopted by the opening of “Hell’s Gate” in Tokyo altering the sky and wreaking havoc on the panorama. The actual stars disappeared, changed by false stars. During this time, folks possessing numerous particular talents — referred to as “Contractors” — emerged, every able to completely different supernatural feats. Following the disastrous Heaven’s War, the United States misplaced its dominant place as a superpower to a mysterious group named the Syndicate. The story revolves round a Chinese contractor codenamed “Hei” as he undertakes numerous espionage and assassination missions in Tokyo.